CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Restricted cash and cash equivalents (including $14 and $32 in variable interest entities, "VIEs," respectively)	$ 66.0	$ 114.0
Accounts receivable, allowance	0.7	0.4
Vacation ownership mortgages receivable, allowance	2.0	1.0
Vacation ownership mortgages receivable, net of allowance of $2 and $1, respectively (including a net $55 and $59 in VIEs, respectively)	84.0	87.0
Other Assets, Current	31.0	29.0
Restricted cash and cash equivalents (including $2 in VIEs)	4.0	4.0
Vacation ownership mortgages receivable, allowance	27.0	21.0
Vacation ownership mortgages receivable, net of allowance of $27 and $21, respectively (including a net $357 and $370 in VIEs, respectively)	627.0	632.0
Accrued expenses and other current liabilities (including a net $1 of interest payable in VIEs)	$ 222.0	$ 187.0
Preferred stock, authorized shares	25,000,000	25,000,000
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, authorized shares	300,000,000	300,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, issued shares	133,822,999	133,545,864
Treasury stock, shares	9,037,627	8,878,489
Series A Preferred Stock [Member]
Preferred stock, authorized shares	100,000	100,000
VIEs
Restricted cash and cash equivalents (including $14 and $32 in variable interest entities, "VIEs," respectively)	$ 14.0	$ 32.0
Vacation ownership mortgages receivable, net of allowance of $2 and $1, respectively (including a net $55 and $59 in VIEs, respectively)	55.0	59.0
Other Assets, Current	3.0	3.0
Restricted cash and cash equivalents (including $2 in VIEs)	2.0	2.0
Vacation ownership mortgages receivable, net of allowance of $27 and $21, respectively (including a net $357 and $370 in VIEs, respectively)	357.0	370.0
Accrued expenses and other current liabilities (including a net $1 of interest payable in VIEs)	$ 1.0	$ 1.0